入门netty，使用@sharable,已经导入了注解的包，为什么还是报错

Question

Answer 1

这是ChannelHandler里的代码

public interface ChannelHandler {
    void handlerAdded(ChannelHandlerContext var1) throws Exception;

    void handlerRemoved(ChannelHandlerContext var1) throws Exception;

    /** @deprecated */
    @Deprecated
    void exceptionCaught(ChannelHandlerContext var1, Throwable var2) throws Exception;

    @Inherited
    @Documented
    @Target({ElementType.TYPE})
    @Retention(RetentionPolicy.RUNTIME)
    public @interface Sharable {
    }
}

@Sharable是属于接口ChannelHandler的，你应该使用@ChannelHandler.Sharable